Drilling-machine.



J. N. BRATTAN.' DRILLING MACHINE.

, APPLICATION FILED SEPT. 19, 1911.. L. Patented Fm 64,1912.

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J'. N. .'SRATTAIN DRILL] NG MACHINE..

APPLICATION FILED SEPT.19, 1911. 1,015,735, Patented Feb.6,1912.

5 SHEETS-SHEET 2.

J. N. BRATTAIN. DRILLING MACHINE.

ABPLICATION FILED SEPT, 19, 1911.

Patented Feb. 6, 1919 5 SHEETS-SHBET 3.

Isl.

J. N. BRATTAIN.

DRILLING MACHINE.

APPLICATION FILJsD SEPT. 19. 1911,

Patented Feb.6,1912.

SHEETS-SHEET 1.

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JOHN NORTH BRATTAIN, F DAVIDSON, NORTH CAROLINA.

DRILLING-MACHINE.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Application filed September 19, 1911. Serial No. 659,211.

To all whom it may concern:

Be it known that I', JOHN N. BRATTAIN, a citizen of the United States, residing at- Davidson, in the county of Mecklenburg, State of North Carolina, have invented certain new and useful Improvements in Drilling-lilachines; and l do hereby declare the following to be a full, clear, and eXact del scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to drilling machines and has for a primary object to generally improve and simplify this class of devices.

A second object of the invention is to provide a novel lifting and releasing mechanism for the drill actuating cable.

A third object of the invention is to provide a controlling means for the lifting and releasing device whereby the length of stroke of the drill may be varied.

A fourth object of the invention is to provide novel clutch mechanism which permits of the cable winding drum beings-electively actuated to lengthen or slierten the cable while the lifting and releasing means is in operation.

A lifth object ofthe invention is to provide a novel head adapted to be slidably fitted to the derrick and equipped with means for simultaneously rotating a drill and supplying water thereto, this head being used-independently of the lifting and releasing means but being supported by the cable controlled by said lifting and releasing means.

A sixth object of the invention is to provide a. driving shaft equipped with t-wo clutches, one of which disconnects the lift,- ing and releasing ineans from the driving shaft when in inactive position7 and the other of which permits of lthe cable carried by said means being actuated by hand so as to slowly and gradually sin-k the rotating drill when the head is in use. l

A seventh object of the invention is to provide a novel cable terminating in two branches which are supported by novelly arranged pulleys at the top of the derrick and which are terminally adapted to receive selectively, a churn drill attaching yoke, a pile or casing driver, or the rotaryv drill. head,

An eighth object of the invention is to provide a novel derrick adapted vto simultaneously, slidably and hingedly secure the rotary drill head, the latter being adapted to be swung to one side of the derrick so as to be out of the Way when either the churn drill pile, or casing driver is in use.

With the above and other objects in view the invention consists of certain novel details of construction and combination of parts hereinafter fully described and claimed, it being understood that various modications may be made in the minor details of construction within the scope of the appended claims.

In the accompanying drawings forming part of this specification z-Figure 1 is a side elevation of the device. Fig. 2 is a plan view with parts broken away. Fig. 3 is a longitudinal sectional view taken on the line 3-3 Fig. 2. Fig. 4 is an end elevation of the device equippedwith a head for rotating a drill. Fig. 5 is a detail perspective view of the lifting and releasing mechanism.

Fig. 6 is a cross sectional View through the lifting and releasing mechanism.- Fig. 7 is a cross sectional view through the two clutch mechanisms. Fig. -8 is a longitudinal sectional view throu h the loosely mounted winding drum dri ing shaft-bearing. Fig. 9 is a cross sectional view on the line 9 9 Fig. 8 with -the bolt in. elevation. Fig. 10 is a cross sectional view taken on the line 10-10 Fig. 2.` Fig. 11 is a cross sectional view taken on the line 11-11 Fig. land showing a churn drill attaching yoke assembled therewith.. Fig 12 is a fragmentary viewin elevation showing the cable supporting a pile or casing driving weight.v Fig. 13 isla fragmentary view in elevation showing the cable supporting a churn drill attaching ybke. Fig. lll is a plan view of the head applied to the derrick, the latter being shown -in cross section. Fig. 15 is a 'front elevation of the head applied. Fig. 16 is a cross sectional view taken on the line 16-16 Fig. 15. Fig. 17 is a detail perspective view of one of the clutch shifting mechanisms.

Referring now to the drawings in which like characters of reference designate similar parts, 10 designates longitudinal ground sills the opposite ends of which are connected by vtransverse sills 11. Rising fromthe ground sills are spaced uprights 12 which are connected at their lower .ends to the ground sills and are anchored in upright position through the instrumentality of inclined :braces 13 which are terminally connected to l the uprights.

' lower ends of thesefbeams arecablepulleys the rock arm, as the rock arm yibrates the to the upper ends of the uprights parts described form a derrick" the'ladder actuating cable, and spaced horizontally disnally to the braces l13 andto'the uprights y12 to support the cable actuating mechanism.

'rigidly secured at?, one end .to a Winding vdrum which Will'lbepresently described and `back upon itself in the direction of and l means. By virtue of the cable being rigidly I acter.

Ierally as shown at. 3L' for a distance equal y mutilated portion of the disk being of the The mutilated periphery or edge of the disk upper ends ot The' uprights are yfurthermore tied together through the instrumentality of spaced tie beams 14. A ladder 15 is pivotally connected intermediate its ends through the instrumentality of pirot bolts 16. The

the ground sills and to the supporting the tool attaching devices and posed bed sills 17 being connectedl termi- A4 plurality of inclined beams 18 are terminally connected to the transverse sill 11 and lower tie beam 14. These beams` are three in number,` and revolubly mounted on a common spindle 19 passed through the 20 and 21. A cable pulley 22 is mounted to turn on its spindle disposed above the spindle 19, and furthermore a cable-pulley. 23 is mounted to turn on a stand ,spindle secured to the transverse sill 11 intermediate the pulleysI 2O and 21. A cable 24.- is

secured to the drum. and to the attaching means,l and being looped over the pulley on loop in the cable will be alternately lengthened and shortened so that the tool will be reciproca'tcd as usual in devices of this char- The lifting and releasing mechanism consists of a shaft Q5 which is mounted to turn g in suitable bearings QGsecured to the bed sills andis equipped with a driving vgear QT.

f this movement of the A. disk 2S keyed Ato the shaft and is provided at. diametrically opposite points in its periphery with notcliesQQI and 30. A sec-l l /ond disk 3l is mounted to turn loosely on the shaft and this diskis cut away periphto about onc-haltI its circumference*the un'- same dialnet-eras the disk 2S, and the mutil latedportion being ot such diameter that. the periphery ofthe disk will register with the bottoni lofthenotchcs in the -disk 28.

31 merges into the ui'nnutihited edge in gently outu-ardly curved cani surfaces 33.

The notched disk will be hereinafter re` ferred toas a ratchet disk, and the disk having the cani'surfaccs, as a cam disk. Both disks are-formed on their outer tacos with hubs 34, and mounted to turn on these hubs are arms which are connect ed iogether by spaced pins 36 the outermost. pin further forming the spindle of a sheave il? over which the bi'ght or loop in the eahlc is trained as above described. A trigger or pawl 38 is loosely mounted intermediate its ends Ion the innermost of the pins 3G, the Working end of the pawl being designed to engage in the notches of the ratchet disk, and the heel otr the paul being thickened to form a couniierbalancing weight which will coperate with the `pull of the tool on the cable in causing the rock arm, as the parts 35 will be hereinafter referred to7 to gravitate.k

Theoperation may be briefly described as vfollows: The shaft 25 is constantly rotated by the driving gear 27 in the direction of the arrow head thereby constantly rotating the ratchet disk in the same direction. The cam diskis held stationary on the shaft through the instrumentalityof a lever 39 which is adjustably secured to a horizontally disposed bar 40 connected to the uprights 12 and to the inclined braces 13, a pintle 41 being engaged across the edge of the lever and passed through one of a series of openings l2 in the bar. The pull of the cable serves to hold the parts in adjusted position. The purpose of this adjustment of the lever will be hereinafter described. .Now as the ratchet disk rotates, the pawl Will fall into one of the notches and the rock arln 'will be rotated upon the shaft, the working end of the pawl riding freely upon kthe mutilated edge of the cam disk until it reaches the uppermost cam surface 33 whereupon the pawl will bc directed out of the notch in the ratchet disk and through the instrumentality of the pull of the tool on the cable and the Wei hted end of the pau'l, the rock arm will hc rocked downwardly 'the Working end of the pawl during parts riding upon the periphery of the ratchet disk and' dropping into the next. notch of the pair of notches when the above operation will again be re peatcd. lt will thus be seen that during the upward rocking movement. of the rock arm, the loop in the cable will bc lcngthened and the tool lit'ted, while during downward rocking movement of the arnnthe loop will he shtu'tcned and the, tool allowed to gravilate. By virtue oit the adjustable connection between the lever 39 and the bar 40, the cam disk 231 may be held stationary in such a position upon the shaft. that the upper cani surface will force the pawl out of the notch in the ratchet disk at any predetermined time so that the length of the loop in and hingedly mounted on the ladder in the following manner: Guide grooves 102 are formed in the inner faces of the ladder sides, and attached tothe front edges of the sides are metal'guide strips 103 the side portions of which extend beyond the bottom or inner 'walls of the grooves and also beyond the `general by the numeral 100 the mating leg:1

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Within which are journaled the ends of a 107 of the hinge beinp` rigidly secured t'o one of the side bars of the frame, a common pintle 108 passing through the lugs of both hinges on the same side of the frame for attaching,` the frame to the attaching members 104C. `By virtue of. this construction the iian'ieis mounted to Slide longitudinally upon the ladder, and furthermore in order to rock the frame to one side of the ladder when not in use, one of the pintles may be removed, the attaching members correspending to this pintle being thus released from the frame and immediately gra vitated to the bottom ot the ladder whereupon the traine may be rocked out from the ladder on the active` hinges.

The frame upper bar is equipped with hooks 109 to receive the loops of the cable,

it being understood that when this frame is.

in use in drilling hard rock that a certain length of the cable is first run off from the drum in order to permit of the frame gra du ally gravitating upon the ladder lduring rotation of the drill, it being understood that the lifting and releasingr mechanism is dispensed with during this operation of the dev1ce,the manner of doing this being to rock the pawl 38 on its plivot until the weighted end bears upon the notched edge of the ratchet disk whereupon the rocking arm will remain stationary in its lowest limit of movementand simply support without actuatingthe'cable, the latter beingplayed ott from the drum as needed either by hand or 'through the instrumentality of the clutch lever 80 as above described.

Disposed within the framelin parallelism With the upper and lower -bars is an intermediate bar` 110., which is secured at one end to one ot' the side bars 101 and se cured at its opposite end to a bar 111 which is disposed in parallelism witlrthe side bar and is terminally attachedl'o the upper and lower bars. A drill receiving bearing box 112 is mounted on the rlower bar, and mounted on the upper and intermediate bars are alined bearing boxes 113 and 114 screw 117l passed through the.A sleeve and bearing upon the drill.V The drill is hollow,

, and for direction" a stream of water through the drill a short pipe connection 118 is arranged above the upper bar and oommunicates with the drill throng-h the instrumentality of a stalling box 11S). ".lhe pipe con nection is connected to the outlet pipe 120 or' the pump through the instrumentality of a rubber or similar hose 121.

Fixed to the sleeve 115 is a bevel-gear 122 which meshes with a berel gear 123 arranged upon one end of a stub shaft. 124 which is mounted in suitable bearix'igs 125 arranged upon the bar 111 and. adjacent side bar 101 of the frame. A belt pulley 126 is tixedto the stub shat'l and disposed on a stub sha'lt- 127 below this pulley is a second belt pulley 12S. Fixed to the driving: shaft 63 on the derrichv is .a belty pulley 129 and furthermore mounted in suitable bearings 130arranged on an upstanding beam 1.31 which is terminally connected to the ground sill 11 and tic bar 11, is a stub shaft 132 upon which is mounted a belt pulley 133. An idler lil-t is mounted on a. rock arm 135 one end of which is pivoted as shown at. 136 to a cross beam 52 attached to the inclined braces .13. The bight. at, one end of the continuous belt 13S is trained over .the belt, pulley 125) on the driving shaft, one side of the belt beingT thence trained under the idler 15S-l, thence directed upwardly upon the ladder and trained over a belt pulley 139 disposed at the ripper end of the ladder thence. the opposite side ot the belty is directed downwardly upon the ladder and trained under the belt pulley 128, thence over the belt pulley 126, and thence is continued downwardly upon thc ladder and trained under the belt pulley 1311. During rotation ol' the drill through the instrumen- -tality of the belt, it is evident that the belt will at all times be held taut through the instrumentality of the rocking idler 134. This construction is most clearly shown in Fig. 1.

The branches of the. cable are trained over outwardly inclined cable pulleys 14.0, shown most clearly in Fig. 11.

In drilling soft rock, drh/'ingr casing, and driving piles, the'above described head is rocked to one side of the ladder andthe necessary tool attached to the cable whereupon tihe lifting and releasing mechanism is set in operation, and either the clutch lever 8O or the crank handle 50 is actuated to lay out the cable from the drum. hard rock, and dirt, the head is rocked to operative position upon the `ladder and the. lifting and releasing mechanism is thrown into inactive position, the cable now being ln dril ing lifting andr `releasing -mechanisim may be operated or the belt'connection voperated to actuate the tool. Furthermore it, will be seen that a portion of the lifting and releasing mechanism will be in use in both instances, namely the rock arm of the mecha' nisrn, the same being used as a vibrator to reciprocate atool for drilling in soft rock, driving casing, and driving piles, and being'used as a stationary support or sheave for the cable when the latter is in use in drilling hard rock or dirt.`

What is claimed, is i 1. The combination with a tool lifting and releasing cable having a loop,of a drive shaft, a fixed ratchet disk thereon having a peripheral notch, a t cam disk loosely. mounted on said shaft, means for holding said cam diskI stationary, the edge of said cam disk beingicut'away andterminating in an outwardly extending cam surface, a rock arm having said shaftas an axis of rotation, a pawl on said rock arm adapted to engage inA said notch, said pawl being (adapted to be directed by said cam surface out of said notclli,f.and means on said rock arm adapted toloo'se'l'y engagethe bight of said loop.' f A 2. The combination` with da tool lifting and releasing cable having a loop, yof adrive shaft,a fixed ratchet disk thereon having a peripheral notch, a cam disk loosely mounted on saidv shaft,'means for holding said cam disk stationary, the edge of said cam disk being cut away to about the depth of said notch, the unmutilated portion of the edge being substantially flush with the edge of said ratchet disk, said out away portion merging i'nto said `unmutilated portion in acam surface, a rock arm having said haft as an axis of rotation, a

pawl on said rock arm adapted to engage in said notch and to be directed out of said notch by said cam surface, and means on said rock arm adapted to loosely engage the bight of said loop.

, The combination with'a` tool lifting and releasing cable having a loop, of a drive shaft, a ratchet disk xed thereon having a notch, a cam disk loosely mounted on` said shaft, means for holding said acam disk stationary, hubs disposedvon the outer faces of saidA ratchet disk and said cam disk, a rock arm straddling both ofsaid disks' and loosely mounted on said hubs, a pivoted pawl on said rock arm adapted to engage in said notch, the edge of said cam disk being cut away to receive, said pawl and terminating in an outwardly directed cam, surface adapted to move said pawl out of said notch, and means on said rock arm adapted 'to loosely engage the bight of said loop.

4. The combination withA a tool lifting and releasing cable having a loop, of a drive shafta fixed ratchet disk thereon having a notch, a cam disk loosely mounted on said shaft, an adjusting lever carried by said cam disk adapted to hold said cam disk stationary in any adjusted position on said shaftgthe edge o f said cam disk being cut. away and terminating in an outwardly extending cam surface, a rock arm having said shaft as an axis of rotation, a pawl on said rock arm adapted to engage in said notch and to be directed out of said notch by said cam surface, and means on said rock arm idapted to loosely engage the bigh't of said 51.)Tl1'e combination of a derrick, a drive shaft thereon, a drum on said derrick having an operative -clutch controlled conncction with said drive shaft, a tool lifting and releasing cable on said derrick and secured to said drum,A and further having an open loop, a ratchet/'disk fixed on saidvs'haft having a notch, a cam disk loosely mounted on' said shaft, means for adjustably holding said cam disk stationary, the edge of said cam disk beinr cut away to about the depth of said notch, tfhe unmutilate portion of the edge being substantially flus f1 with the edge ofsaid ratchet disk, said cut away portion merging into said unmutilated portion in a cam surface, a rock armuhaving said shaft t as van axis of rotation, a pawl on said rock arm adapted to engage in said notch and to be directedout of said notch by said Lcam surface, and means on said rock arm adapted to loosely engage the bight' of said loop.

6. The'combination of a derrick, a drive shaft thereon, a power driven shaft oper atively connected to said drive shaft, a windin`g`drum on said derrick, a manually actuf ated vshaft having an operative connection with said drum, a stub shaft pivotally connectedv at one 'endof said derrick and hav-` ing a worm gear connection at the opposite end with said drum, means on the free end of said stub shaft for disengaging said worm gear connection, a clutch mechanism on said ower driven shaft adapted torotate said stu y shaft in either direction., a cable attached tofsaid drum and serving to raise and lower a tool on said derrick, and further having an open loop, a fixed ratchet disk on said drive shaft having a notch, a cam disk adapted to'be held stationary on sai shaft, and having a cam surface, a rock arm hav ving said drive shaft as an axis of rotation, a

pawl on said rock arm adapted to engage in said notch and to be disengaged from said notch by sald cam surface, and. means on said rook arm adaptedto loosely. engage the lsleeve and the shaft housed therein together,

a pump operatively connected to thehoused shaft, a Winding drum having an operative clutch connection with said sleeve, a cable on said derriek and secured to said drum, and further having an open loop, a fixed ratchet disk on said drive shaft having a notch, a cam disk adapt-ed to be held stationary on said drive shaft, and having a cani surface,v a rook arm having said drive shaft as an axis of rotation, a paivl on said rock arin adapted to engage in said notch and to he disengaged from said notch by saidl cam surface, and means on said rook arm adapt ed to loosely engage the bight in the cable loop. f

8. The combination of a dei-rick, a drum thereon, a tool lifting and releasing cableon said derriok and secured to said drum, and having an. open loop, a drive shaft, a fixed' ratchet disk thereon having a notch, 'a cani disk loosely mounted on saidv shaft, an adjustinghlever earried'by said cam disk adapt ed to hold the disk stationary in any adjusted position on `said shaft, the edge of said cam disk heing out away and terminating in an outwardly extending cani surface, a rook arm having said shaft as an axis of rotation, a paivl pivoted intermediate its ends on said rock arin and having its working end adapted to engage in said notch and to be disengaged from said notch by said earn surface, said pawl having a Weighted kend remote fronrsaid working end,aiul' means on said'roc-k arm adapted to loosely engage the hight. of said loop.

- 9. The combination with a tool.I lifliig and releasing Yeablo having an opemflq'op, of a drive shaft, a ratchet element ogn said shaft, a cam element on said shaft having an outwardly directed Cain surfaoe, a rock lever, a paivl on said rock lever adapted toengage said ratchet element and to be disengaged therefrom by said cani element, and means on said lever adapted to loosely engage the bightof said loop. I

In testimony'wvhereof, I aiix my signature, in presence of two witnesses.

JOHN NORTH BRATTAIN.

Witnesses:

` A. ISIGRI'GSBY, H. M. PorHAM. 

